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tD(70• 1455 McDowell Blvd. Nort(t, Ste. D <br />7) 792-1865 <br />Sequoia Petaluma, CA 94954 <br />FAX (707) 792-0342 <br />WO Analytical www.sequoialabs.com <br />Cambria Environmental Project: Equiva <br />270 Perkins St. Project Number: 880 Victor Rd., Lodi, CA Reported: <br />Sonoma CA, 95476 Project Manager: Aubrey Cool 12/12/0011:01 <br />Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015NV8020M - Quality Control <br />Sequoia Analytical - Petaluma <br />Reporting Spike Source DKREC RPD <br />Analyte Result limit Units level Result °/9REC limits RPD Limit Notes <br />Batch 0110649 - EPA 5030, soils <br />Matrix Spike (0110649 -MSI) <br />Source: P011580-12 <br />Prepared & Analyzed: 11/28/00 <br />Gasoline <br />4.32 <br />1.00 mg/kg <br />5.50 <br />ND <br />77.4 <br />65-135 <br />Benzene <br />0.0664 <br />0.00500 <br />0.0640 <br />ND <br />104 <br />65-135 <br />Toluene <br />0.360 <br />0.00500 <br />0.386 <br />ND <br />93.3 <br />65-135 <br />Ethylbenzene <br />0.0847 <br />0.00500 <br />0.0920 <br />ND <br />92.1 <br />65-135 <br />Xylenes (total) <br />0.461 <br />0.00500 " <br />0.462 <br />ND <br />99.8 <br />65-135 <br />Surrogate. a,a,a-Trifluorotoluene 0.591 0.600 98.5 65-135 <br />Surrogate:4-Bromofluorobenzene 0.593 0.600 98.8 65-135 <br />Matrix Spike Dup (0110649 -MSD!) <br />Source: P011580-12 <br />Prepared & Analyzed: 11/28/00 <br />Gasoline <br />4.11 <br />1.00 mg/kg <br />5.50 <br />ND <br />73.5 <br />65-135 <br />4.98 <br />20 <br />Benzene <br />0.0636 <br />0.00500 <br />0.0640 <br />ND <br />99.4 <br />65-135 <br />4.31 <br />20 <br />Toluene <br />0.351 <br />0.00500 <br />0.386 <br />ND <br />90.9 <br />65-135 <br />2.53 <br />20 <br />Ethylbenzene <br />0.0836 <br />0.00500 <br />0.0920 <br />ND <br />90.9 <br />65-135 <br />1.31 <br />20 <br />Xylenes (total) <br />0.452 <br />0.00500 <br />0.462 <br />ND <br />97.8 <br />65-135 <br />1.97 <br />20 <br />Surrogate: ax a-Trifluorotoluene 0.593 0.600 98.8 65-135 <br />Surrogate:4-Bromofluorobenzene 0.582 0.600 97.0 65-135 <br />Sequoia Analytical - Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />Page 11 of 19 <br />